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91465 (1999 RE80)
Classification: Main-belt Asteroid          SPK-ID: 2091465
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1231827588812345 6.9908e-08  
a 2.896506801214228 2.0473e-08 au
q 2.5397071023224 1.9813e-07 au
i 17.65035109388839 7.4969e-06 deg
node 181.608734655058 1.4413e-05 deg
peri 183.5378072903456 2.2981e-05 deg
M 62.29597363045199 1.7949e-05 deg
tp 2458688.921320182127
(2019-Jul-24.42132018)
8.901e-05 TDB
period 1800.571019241659
4.93
1.909e-05
5.227e-08
d
yr
n .1999365735385545 2.1198e-09 deg/d
Q 3.253306500106056 2.2995e-08 au
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      7385 days (20.22 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54334  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 08:48:20  

Additional Information
 Earth MOID = 1.53778 au 
 Jupiter MOID = 2.20667 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457186.5 (2015-Jun-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1241455047290024 6.9945e-08  
q 2.535219765990283 1.9832e-07 au
tp 2456878.540350275862
(2014-Aug-09.04035028)
8.5882e-05 TDB
node 181.689079676117 1.4384e-05 deg
peri 181.659954600663 2.289e-05 deg
i 17.66954928079372 7.5001e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      7385 days (20.22 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54334  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 08:48:20  

Additional Information
 Jupiter MOID = 2.20667 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.892355395679379E-15 -1.38199645802616E-14 2.247951877966412E-12 1.929452578330466E-14 4.362521809013437E-13 5.428883131232688E-15
q -1.38199645802616E-14 3.93303692346431E-14 -6.46319051167192E-12 -5.353896798539769E-14 -1.246210928482927E-12 -1.379483740832109E-14
tp 2.247951877966412E-12 -6.46319051167192E-12 7.375713725367427E-9 1.366286955987558E-11 1.54594605787386E-9 9.266337277190599E-12
node 1.929452578330466E-14 -5.353896798539769E-14 1.366286955987558E-11 2.068894252155499E-10 -1.938750801542703E-10 4.266025620052534E-11
peri 4.362521809013437E-13 -1.246210928482927E-12 1.54594605787386E-9 -1.938750801542703E-10 5.239382882571694E-10 -3.867459217489287E-11
i 5.428883131232688E-15 -1.379483740832109E-14 9.266337277190599E-12 4.266025620052534E-11 -3.867459217489287E-11 5.62517144611578E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO453354  

91465 (1999 RE80)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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